こんにちは。御連絡有難う御座います。
音と見た目に問題がなければこのアンプを買いたいです。送料無料であれば私は500ドルで買います。
Good day. Thank you for contacting me.
I would like to purchase this amplifier if it sounds nice and looks good.
I will purchase it at U$ 500.00 if its shipment is free of charge.